15245020 has 24 divisors (see below), whose sum is σ = 36588384. Its totient is φ = 5226816.

The previous prime is 15245017. The next prime is 15245029. The reversal of 15245020 is 2054251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15245029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54307 + ... + 54586.

It is an arithmetic number, because the mean of its divisors is an integer number (1524516).

Almost surely, 2^15245020 is an apocalyptic number.

15245020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15245020 is an abundant number, since it is smaller than the sum of its proper divisors (21343364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15245020 is a wasteful number, since it uses less digits than its factorization.

15245020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108909 (or 108907 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 15245020 is about 3904.4871622276. The cubic root of 15245020 is about 247.9567866087.

Adding to 15245020 its reverse (2054251), we get a palindrome (17299271).

The spelling of 15245020 in words is "fifteen million, two hundred forty-five thousand, twenty".